College pizza delivers pizzas to the dormitories and apartments near a major state university. The company's annual fixed expenses are $40,000. The sale price of a pizza is $10, and it costs the company $5 to make and deliver each pizza. in the following requirements, ignore income taxes.

1. using the contribution-margin approach, compute the company's break even point in units (pizza)?
2. what is the contribution-margin ratio?
3. compute the break even sales revenue. use the contribution margin ratio in your caculation?
4. how many pizzas must the company sell to earn a target profit of 65,000? use the equation